Heat reducing attachment for light fixtures, including spaced upper and lower heat restrictors



May 12, 1953 LEVY 2,638,531 HEAT REDUCING ATTACHMENT FOR LIGHT FIXTURES. mcwnmc SPACED UPPER AND LOWER HEAT RES'IRI'CTORS Fil'ed Aug. 5, 19.49

Isaac Levy INVENTOR.

BY M MM,

' Fig. 3

Patented May 12, 1953 UNITED STATES OFFLICE HEAT REDUCING ATTACHMENT FOR LIGHT FIXTURES, INCLUDING SPBCED UPPER 'AND 'L OWER 'HEAT REST-RIC'IORS Isaac Levy, LaureltomN. Y.

Application August '5, 1949, Serial No.'108;707

4 Claims.

This invention relates to new and useful improvements in light fixtures and :the primary :obj'ect f the present invention is to provide an attachment for the light fixture disclosed in my co-pending application Serial No. 75,756, filed February 11, 1949, now U. S.fPa-tent No. 2,512,948, that will considerably reduce the heat prevalent in a lightfixtureoutlet box when abulb mounted in the light fixture is energized.

Anotherimportant object of the present invention isto provide a heat reducing attachment that is uiclrlyand readily appliedto or removed from a light fixture in a convenient manner-and which will permit the convenient and safe handling of a light fixture. v

A furtherobjeet of the present invention is to provide an attachment of :the aforementioned character that is extremely small-and compact in structure and which will add verylittle'weight to the fixture on which the-same is applied.

A still further aim of the presentinventi'on :is to provide .a heat reducing attachment for light fixtures that is simple andpractical in construction, strongand reliable in use, neat and attractive in appearance, relatively inexpensive toumanufacture, and otherwise well adapted for the purposes for which the same is intended.

Other objects and advantages reside in "the details of construction and operation as more fully hereinafter described and claimed, reference being had to the accompanying drawings forming parthereof, wherein like numerals refer to like parts throughout, and'in which: I

Figural is an elevational viewofa lightifixture and showing the present invention applied thereto; v

Figure 2 is an enlarged vertical sectional view taken substantially on the plane of section line 2-2 of Figure 1; and

Figure 3 is a group perspective view of the present invention separated from a light fixture to which the same is to be applied.

Referring now to the drawings in detail, wherein for the purpose of illustration, there is disclosed a preferred embodiment of the present invention, the numeral Ill represents the base portion of the light fixture that is preferably stamped or formed from a single sheet of bendable material.

The base portion In comprises a flat or outer endless channel member I2, preferably annular in configuration, that includes an inner flange portion l4 and an outer flange portion IS. The outer flange portion I6 is flared outwardly to provide a continuous skirt or shield l8 and termi- 2 nates' in an upstanding flange or scalloped .edge (not 'shownl that is spaced above the upper edge o'f'theinner leg portion M.

The numeral 22 represents an inverted inner endless channelmember the flange portion '24 of which is integrally formed with the inner flange portion M or the channel member 12. The -leg portion "24 is also flush withtheleg portion l4.

Theinner "leg portion "26 of the channel'member 22 is integrally formetl'withaclosure plate that lies -in=a plane spaced parallel to the webs of the channel members l 2zan'd 22.

A suitable angle bracket 32 supportinga lamp receiving socket 35 is secured to the closure pla'te'2-8.

A plurality of circumferentially spaced set screws or fasteners 48 :are threaded in apertures 50 in the leg portions W and Ni-of the channel member I 2 a-ndbear against the neck portion 44 of a suitable lamp enolosureor globe.

The aforementioneddescribed structure isspecifically set forth in my co-pending application Serial No. 75,756, filed February ll, 1949, now U. S. Patent No. -2;51'2,948,-andtherefore, does not embody "the subject matter for the instant structure although the instantattac'hment is primarily intended to he used in-conjunotion with the base portion H) in order-to reduce the heat normally prevalent during "themse of the base in.

In'orlier to accommodate the instant attachment, the closure plate 28 is formed'with a 'central Opening 56 that receives the lower reduced portion $8 -of 'aoylindrical member dill having an enlargedupper portioniiz. ;A*heat-resistant disk, preferably "of asbestos material, 64 is *fitted in the lower reduced portion '58 of the member "'60 "and a furtherheat resistant'disk,'preferably of asbestos material, 66 is fitted in the upper enlarged portion 62 of the member 611. The member is provided with a shouldered portion 58 that bears against the upper face of the closure plate 28.

The members 64 and 66 are spaced parallel to each other and the walls of the member 60, between the heat resisting elements 64 and 66, are provided with a plurality of circumferentially spaced openings 10 to permit the passage of air therethrough.

A further heat-resisting member, of preferably asbestos material, 12 rests upon the upper face of the member 66. The member 72 is of a diameter greater than the diameter of the member 66 but of a diameter less than the diameter of the inner endless channel member 22. A metallic plate 14 is secured by fasteners or the like 16 to the under surface of the member 72 and includes an upthe attachment 82 is relatively light since the cylindrical member 60 and ring 14 are constructed of a suitable light weight metal, also the members 64, 66 and 12, being of asbestos or such other suitable light weight fire and heat-resistant material will add very little weight to the entire attachment 82.

In practical use of the present invention, the attachment 82, being secured to the base 10 as aforementioned, is secured to the undersurface of a wall structure so that the upper face of member '12 bears against the under surface of the wall. As a lamp bulb, carried by the socket 34, is energized the heat radiated from the light bulb will tend to be absorbed or reflected by the members 64, 65 and 72. There is also provided a passage for air due to the openings Ill and further openings or slots 54 in the leg or flange portion 14 of the channel member 12.

It has been found that with the use of the instant attachment a large amount of heat normally retained within the outlet box above the globe 4'5 will be reduced to such an extent that the heat in the outlet box is no longer considered hazardous.

In view of the foregoing description taken in conjunction with the accompanying drawings it is believed that a clear understanding of the construction, operation and advantages of the device will be quite apparent to those skilled in this art. A more detailed description is accordingly deemed unnecessary.

It is to be understood, however, that even though there is herein shown and described a preferred embodiment of the invention the same is susceptible to certain changes fully comprehended by the spirit of the invention as herein described and the scope of the appended claims.

Having described the invention, what claimed as new is:

1. For use with a lamp fixture having an upper horizontal Wall with an opening therein, a heat reducer comprising a hollow member having upper and lower portions, a lower heat resistor mounted in the lower portion of said member, and an upper heat resistor mounted in the upper por- .4 tion of said member, said member having openings in its wall disposed between the upper and lower heat resistors, the lower portion of said member extending downwardly through the opening in said upper Wall, said member having a shouldered portion supported on said upper wall.

2. The combination of claim 1, wherein said upper heat resistor includes an asbestos ring overhanging the member, and fasteners carried by and depending from said ring and securing said attachment to said upper wall.

3. In a lamp fixture including a, base portion having a horizontal wall with an enlarged central opening therein, a heat reducer comprising a cylindrical member having a reduced lower portion extending downwardly through the open- I ing, said member having a, shouldered portion supported on said horizontal wall, said member also including an enlarged upper portion, a lower heat-resistant disk received in the lower portion of said member, an upper heat resistant disk received in the upper portion of said member and spaced parallel to the lower disk, said member having openings in its wall between said upper and lower disks, and means securing the member to the horizontal wall.

'4. In a lamp fixture including a base portion having a horizontal wall with an enlarged central opening therein, a heat reducer comprising a cylindrical member having a reduced lower portion extending downwardly through the opening, said member having a shouldered portion supported on said horizontal wall, said member also including an enlarged upper portion, a lower heat-resistant disk received in the lower portion of said member, an upper heat resistant disk received in the upper portion of said member and spaced parallel to the lower disk, said member having openings in its wall between said upper and lower disks, another heat-resistant diskoverlying and supported on said upper disk and including a portion overhanging the upper end of said member, and bolts extending downwardly through said portion and through said horizontal wall and securing said member to said base.

ISAAC LEVY.

References Cited in thefile of this patent UNITED STATES PATENTS Walthers Feb. 17, 1931 

